Ultra-compact 2-channel hum destroyer

The HD400 features two channels that can eliminate hum in two mono signals or one stereo signal.

Try putting it between a stereo mixer and your power amps for a squeaky-clean sound free of AC hum.

It breaks ground loops safely while maintaining the highest sound quality. It can even convert unbalanced signals into balanced without any signal degradation.

Features:

• Removes AC hum and noise - fast, easy and reliable
• Breaks ground loops safely, while keeping highest sonic quality
• 2 independent channels for 2 mono or 1 stereo signal
• Automatically converts unbalanced to balanced signals without signal loss
• High-quality components and exceptionally rugged construction ensure long life